What was found
LEFT WING TE PANEL SUPPORT HAS NUMEROUS RUSTED NUTPLATES INBD OF AUXILIARY TANK VENT AT PANEL 56NB. WORKED IAW B657-60943. REPLACED SUPPORT, PN 113T1683-31, PART NAME SUPPORT ASSEMBLY, CORRODED, EXACT STRINGER & WS LOC ON ACFT 1046.2 TO 1046.2. ACFT WAS GNDED.